Tretinoin and microneedling both enhance hair growth through different mechanisms, with microneedling being considered safe for long-term use. Optimal microneedling needle length varies, but 0.8 mm is suggested for hair growth, and a Dermastamp is recommended to avoid skin damage.
Tretinoin may enhance the effectiveness of minoxidil for hair regrowth by increasing enzyme activity and skin permeability, but its standalone impact is limited. Some users experienced improved hair growth with tretinoin, while others found it worsened their condition.
Tretinoin may enhance the effectiveness of minoxidil for some users, though experiences vary. Some users report better results with oral minoxidil compared to adding tretinoin.
The user has been using minoxidil for over a year with little success, added tretinoin cream, and is considering adding red light therapy. They are advised to use moisturizer to counteract skin sensitivity from tretinoin.
The conversation is about using tretinoin to enhance the effects of minoxidil for hair loss, with suggestions to switch from finasteride to dutasteride or use RU58841 for better results. Concerns about tretinoin causing dry scalp and its potential impact on hair loss progression are also discussed.